Arid
DOI10.1071/RJ08047
A framework for assessing regional biodiversity condition under changing environments of the arid Australian rangelands
Smyth, A. K.1; Brandle, R.2; Chewings, V.3; Read, J.4; Brook, A.5; Fleming, M.5
通讯作者Smyth, A. K.
来源期刊RANGELAND JOURNAL
ISSN1036-9872
出版年2009
卷号31期号:1页码:87-101
英文摘要

Rangelands support many ecosystem services important to humans, including climate regulation. They also have a significant role to play in the mitigation of greenhouse gases. However, the capacity of any rangeland to do this depends foremost upon the condition of biodiversity, and the functioning of its ecosystems. Considerable research has been undertaken on rangeland condition but it has not yet included the assessment of biodiversity (plants, animals and microbes) as a primary focus. Rangeland managers have struggled to assess biodiversity condition because it is rarely defined, is everywhere (so what do you assess?), is always changing in response to natural and human disturbances (so how do you know when it has changed?) and what amount signals management action. Here we present a framework that addresses these issues, and apply it to select surrogates and indicators that are scientifically defensible in biological and planning terms for assessing biodiversity. An arid Australian rangeland region is used as a case study to develop and apply our approach. We were not able to illustrate interpretation of condition because of the absence of long-term monitoring data in Australian rangelands, but we do provide guiding principles about sampling design and analytical methods for interpretation that use raw data rather than multimetrics. We discovered that different management outcomes expected to be informed from assessing biodiversity condition affected surrogate and indicator choice, and that a number indicators were not robust when assessed on conceptual relevance, measurement qualities, feasibility of implementation and policy and management relevance for four different management outcomes. Our work highlights the importance of stating the expected outcomes of biodiversity condition assessments up front, so that indicators relevant to future management are chosen. It also shows that critical thought on the robustness of indicators is warranted, especially as condition assessments under climate change will require information on the functional traits of species. We conclude by assessing the strengths and weaknesses of our framework in relation to environmental planning.


英文关键词biodiversity monitoring biodiversity and ecosystem functioning biodiversity surrogacy climate change ecological indicators
类型Article
语种英语
国家Australia
收录类别SCI-E
WOS记录号WOS:000264639900007
WOS关键词MAPPING VEGETATION CONDITION ; MONITORING-SYSTEM ; WESTERN-AUSTRALIA ; POWER ANALYSIS ; IMPACTS ; CONSERVATION ; VARIABILITY ; INDICATORS ; QUEENSLAND ; MANAGEMENT
WOS类目Ecology
WOS研究方向Environmental Sciences & Ecology
来源机构Commonwealth Scientific and Industrial Research Organisation
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/162405
作者单位1.CSIRO Sustainable Ecosyst, Glen Osmond, SA 5064, Australia;
2.Dept Environm & Heritage SA, Adelaide, SA 5001, Australia;
3.CSIRO Sustainable Ecosyst, Alice Springs, NT 0871, Australia;
4.Univ Adelaide, Sch Earth & Environm Sci, Adelaide, SA 5000, Australia;
5.Dept Water Land & Biodivers Conservat, Adelaide, SA 5001, Australia
推荐引用方式
GB/T 7714
Smyth, A. K.,Brandle, R.,Chewings, V.,et al. A framework for assessing regional biodiversity condition under changing environments of the arid Australian rangelands[J]. Commonwealth Scientific and Industrial Research Organisation,2009,31(1):87-101.
APA Smyth, A. K.,Brandle, R.,Chewings, V.,Read, J.,Brook, A.,&Fleming, M..(2009).A framework for assessing regional biodiversity condition under changing environments of the arid Australian rangelands.RANGELAND JOURNAL,31(1),87-101.
MLA Smyth, A. K.,et al."A framework for assessing regional biodiversity condition under changing environments of the arid Australian rangelands".RANGELAND JOURNAL 31.1(2009):87-101.
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